linux-stable/Documentation
David Rientjes 85b9f46e8e mm, thp: track fallbacks due to failed memcg charges separately
The thp_fault_fallback and thp_file_fallback vmstats are incremented if
either the hugepage allocation fails through the page allocator or the
hugepage charge fails through mem cgroup.

This patch leaves this field untouched but adds two new fields,
thp_{fault,file}_fallback_charge, which is incremented only when the mem
cgroup charge fails.

This distinguishes between attempted hugepage allocations that fail due to
fragmentation (or low memory conditions) and those that fail due to mem
cgroup limits.  That can be used to determine the impact of fragmentation
on the system by excluding faults that failed due to memcg usage.

Signed-off-by: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Yang Shi <yang.shi@linux.alibaba.com>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Mike Rapoport <rppt@linux.ibm.com>
Cc: Jeremy Cline <jcline@redhat.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Vlastimil Babka <vbabka@suse.cz>
Link: http://lkml.kernel.org/r/alpine.DEB.2.21.2003061422070.7412@chino.kir.corp.google.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-04-07 10:43:38 -07:00
..
ABI powerpc updates for 5.7 2020-04-05 11:12:59 -07:00
PCI pci-v5.7-changes 2020-04-03 14:25:02 -07:00
RCU doc: Add rcutorture scripting to torture.txt 2020-02-27 07:03:14 -08:00
accounting doc: cgroup: improve formatting of references 2020-03-02 12:57:03 -07:00
admin-guide mm, thp: track fallbacks due to failed memcg charges separately 2020-04-07 10:43:38 -07:00
arm docs: arm: tcm: Fix a few typos 2020-02-19 02:42:21 -07:00
arm64 arm64 updates for 5.7: 2020-03-31 10:05:01 -07:00
block block: Document genhd capability flags 2020-03-12 07:47:22 -06:00
bpf bpf: lsm: Add Documentation 2020-03-30 01:35:12 +02:00
cdrom
core-api mm: add pagemap.h to the fine documentation 2020-04-02 09:35:29 -07:00
cpu-freq docs: cpu-freq: convert cpufreq-stats.txt to ReST 2020-03-06 00:01:02 +01:00
crypto crypto: algapi - make unregistration functions return void 2019-12-20 14:58:35 +08:00
dev-tools linux-kselftest-kunit-5.7-rc1 2020-04-01 16:11:40 -07:00
devicetree There's not much to see in the core framework this time around. Instead the 2020-04-05 10:43:32 -07:00
doc-guide Documentation: build warnings related to missing blank lines after explicit markups has been fixed 2020-02-05 10:30:03 -07:00
driver-api This is the bulk of GPIO development for the v5.7 kernel cycle. 2020-04-04 10:27:00 -07:00
fault-injection
fb fbdev: fbmem: allow overriding the number of bootup logos 2020-01-03 14:27:40 +01:00
features documentation: vm: Advertise support for pte_special in riscv 2020-02-19 02:41:01 -07:00
filesystems 1) Replace ext4's bmap and iopoll implementations to use iomap. 2020-04-05 10:54:03 -07:00
firmware-guide docs: firmware-guide: ACPI: Replace dma_request_slave_channel() with dma_request_chan() 2019-12-19 22:58:12 +01:00
firmware_class
fpga Documentation: fpga: dfl: add descriptions for thermal/power management interfaces 2019-10-16 19:18:26 -07:00
gpu UAPI Changes: 2020-03-19 10:40:27 +10:00
hid
hwmon docs: hwmon: Update documentation for isl68137 pmbus driver 2020-03-22 16:42:54 -07:00
i2c i2c: convert SMBus alert setup function to return an ERRPTR 2020-03-10 12:19:52 +01:00
ia64
ide
iio
infiniband Documentation/infiniband: update name of some functions 2019-09-13 16:55:55 -03:00
input
isdn isdn: capi: dead code removal 2019-12-11 09:12:38 +01:00
kbuild Kbuild updates for v5.7 2020-03-31 16:03:39 -07:00
kernel-hacking docs: locking: Drop :c:func: throughout 2020-03-20 17:16:24 -06:00
leds
livepatch livepatch: Documentation of the new API for tracking system state changes 2019-11-01 13:08:24 +01:00
locking Documentation/locking/locktypes: Minor copy editor fixes 2020-03-28 12:47:34 +01:00
m68k
maintainer Add a maintainer entry profile for documentation 2020-01-24 09:48:39 -07:00
media media updates for v5.7-rc1 2020-03-30 13:42:05 -07:00
mhi docs: Add documentation for MHI bus 2020-03-19 07:41:04 +01:00
mips docs: mips: remove no longer needed au1xxx_ide.rst documentation 2020-03-24 15:53:48 +01:00
misc-devices Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2020-04-01 14:47:40 -07:00
netlabel
networking Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next 2020-03-31 17:29:33 -07:00
nios2
nvdimm docs: nvdimm: use ReST notation for subsection 2020-01-24 09:54:42 -07:00
openrisc
parisc
pcmcia
power Merge branches 'pm-core', 'pm-sleep', 'pm-acpi' and 'pm-domains' 2020-03-30 14:46:58 +02:00
powerpc powerpc updates for 5.7 2020-04-05 11:12:59 -07:00
process Char/Misc driver patches for 5.7-rc1 2020-04-03 13:22:40 -07:00
riscv It has been a relatively quiet cycle for documentation, but there's still a 2020-01-29 15:27:31 -08:00
s390
scheduler Documentation/scheduler: fix links in sched-stats 2019-10-29 04:35:41 -06:00
scsi SCSI misc on 20200402 2020-04-02 17:03:53 -07:00
security docs: prevent warnings due to autosectionlabel 2020-03-20 17:01:29 -06:00
sh
sound ALSA: hda/realtek - Remove now-unnecessary XPS 13 headphone noise fixups 2020-03-31 10:54:06 +02:00
sparc
sphinx docs: Fix empty parallelism argument 2020-02-25 03:11:04 -07:00
sphinx-static doc-rst: Reduce CSS padding around Field 2019-10-02 10:03:06 -06:00
spi
target docs: prevent warnings due to autosectionlabel 2020-03-20 17:01:29 -06:00
timers
trace New tracing features: 2020-04-05 10:36:18 -07:00
translations media updates for v5.7-rc1 2020-03-30 13:42:05 -07:00
usb usb: gadget: add raw-gadget interface 2020-03-15 11:34:48 +02:00
userspace-api docs: userspace: ioctl-number: remove mc146818rtc conflict 2020-02-13 11:42:02 -07:00
virt ARM: 2020-04-02 15:13:15 -07:00
vm SPDX patches for 5.7-rc1. 2020-04-03 13:12:26 -07:00
w1 docs: w1: Fix a typo in omap-hdq.rst 2019-12-30 11:58:02 -07:00
watchdog linux-watchdog 5.4-rc1 tag 2019-09-27 11:17:38 -07:00
x86 Merge branch 'x86-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2020-03-31 11:04:05 -07:00
xtensa
.gitignore .gitignore: add SPDX License Identifier 2020-03-25 11:50:48 +01:00
COPYING-logo
Changes
CodingStyle
DMA-API-HOWTO.txt
DMA-API.txt dma-mapping: remove dma_release_declared_memory 2019-09-04 11:13:19 +02:00
DMA-ISA-LPC.txt
DMA-attributes.txt dma-mapping: remove the DMA_ATTR_WRITE_BARRIER flag 2019-11-14 12:01:54 -04:00
IPMI.txt
IRQ-affinity.txt
IRQ-domain.txt
IRQ.txt
Kconfig
Makefile Kbuild updates for v5.7 2020-03-31 16:03:39 -07:00
SubmittingPatches
asm-annotations.rst Documentation: Call out example SYM_FUNC_* usage as x86-specific 2020-01-16 12:53:16 -07:00
atomic_bitops.txt
atomic_t.txt
bus-virt-phys-mapping.txt
conf.py docs: conf.py: avoid thousands of duplicate label warning on Sphinx 2020-03-20 17:01:34 -06:00
crc32.txt
debugging-via-ohci1394.txt
digsig.txt
docutils.conf
dontdiff modpost: dump missing namespaces into a single modules.nsdeps file 2019-11-11 20:10:01 +09:00
futex-requeue-pi.txt
hwspinlock.txt
index.rst Char/Misc driver patches for 5.7-rc1 2020-04-03 13:22:40 -07:00
irqflags-tracing.txt
kprobes.txt
kref.txt docs: kref: Clarify the use of two kref_put() in example code 2020-02-25 03:39:10 -07:00
logo.gif
lzo.txt
mailbox.txt
memory-barriers.txt Documentation/memory-barriers: Fix typos 2020-02-27 07:03:14 -08:00
nommu-mmap.txt
percpu-rw-semaphore.txt
pi-futex.txt
preempt-locking.txt
rbtree.txt
remoteproc.txt remoteproc: Add elf64 support in elf loader 2020-03-25 22:29:40 -07:00
robust-futex-ABI.txt threads: Update PID limit comment according to futex UAPI change 2020-03-21 17:48:13 +01:00
robust-futexes.txt
rpmsg.txt
speculation.txt
static-keys.txt
tee.txt Documentation: tee: add AMD-TEE driver details 2020-01-04 13:49:51 +08:00
this_cpu_ops.txt
unaligned-memory-access.txt
xz.txt